Unify -- more intended for warm leads it looks like compared to Clay which is for enriching leads that are cold. If you're looking for a set it and forget it tool for outbound, then Unify is going to be your pick. Otherwise, Clay. Not sure about pricing unfortunately.

Comen'n, you're a techie. Use Google Sheets + Google App Scripts to make external API calls for each column! Or just use N8N :)

I feel like there are a lot of tools in this space, but they're all flawed, or they all defeat the purpose of Clay - which is having easy access to a lot of integrations with external data providers, and then falling back to their AI agent if you can't find a data provider. You're probably not going to save money by spending more time stitching together multiple tools, instead of doing everything at once in Clay.

That said, I did compiled some alternatives in my blog awhile ago if you're interested. (Just search for "Bloomberry Clay alternatives"). If you're OK with some limitations like less CRM integrations (ie. some only support Hubspot), or less data providers (some use less contact data providers in their waterfall enrichment), then there definitely are some cheaper ones you can try.

Is there a particular thing you can live without?

I think Exa Websets.